Installing and Managing HP ARPA File Transfer Protocol Network Manager's Guide (36957-90157)

26 Chapter 2
Verify Installation and Update LAN Configuration
Network Traffic
Network Traffic
Enabling Ethernet on an MPE/iX system increases the number of
broadcast packets the system receives. If your installation has had
network traffic problems in the past, or you expect this increase in
traffic to affect your network performance, there are two things you can
do:
• First, if the node is not a gateway, verify that the store and forward
feature has been disabled.
• Second, as part of an overall network plan, examine the MPE/iX
subnet feature as a means for managing network traffic.
Store and Forward
Traffic problems may occur if you use the default configuration for store
and forward buffers. If the node you are updating is not a gateway node,
you can decrease network traffic by disabling store and forward.
Creating Subnets
Subnetting is used to divide one large network into smaller
subnetworks (subnets). Subnets are configured using the IP subnet
mask as described under “Update the IP Protocol Configuration.”
Update the IP Protocol Configuration
To enter an IP subnet mask for each node in the subnetwork and/or to
disable store and forward, do the following:
1. Run NMMGR.PUB.SYS.
2. At the Open Configuration/Directory File screen, ensure that the
configuration file NMCONFIG.PUB.SYS appears as the configuration
file name. You want to open the file by pressing the
[Open Config] key.
3. The Main screen is displayed. At the Command prompt, enter the
direct path name as follows and then press the [Enter] key:
@NETXPORT.NI.niname.PROTOCOL.IP
where niname is the configured LAN NI that supports Ethernet.
4. From the IP Protocol Configuration screen, enter the IP subnet mask
you have selected for this subnetwork in the IP Mask field. The
subnet mask is specified in the same format as the IP address
without the preceding letter (A, B, or C). The 32-bit mask is grouped
in octets expressed as decimal integers and is delimited by a period
(.) or a space. (See the paragraph “Example: Subnet Mask” later in
this chapter.)